- imaxabs
-
return absolute value
- imaxdiv
-
return quotient and remainder
- index
-
character string operations (LEGACY)
- inet_addr
-
IPv4 address manipulation
- inet_ntoa
-
See inet_addr.3posix
- inet_ntop
-
convert IPv4 and IPv6 addresses between binary
and text form
- inet_pton
-
See inet_ntop.3posix
- initstate
-
See random.3posix
- insque
-
insert or remove an element in a queue
- ioctl
-
control a STREAMS device (STREAMS)
- isalnum
-
test for an alphanumeric character
- isalpha
-
test for an alphabetic character
- isascii
-
test for a 7-bit US-ASCII character
- isastream
-
test a file descriptor (STREAMS)
- isatty
-
test for a terminal device
- isblank
-
test for a blank character
- iscntrl
-
test for a control character
- isdigit
-
test for a decimal digit
- isfinite
-
test for finite value
- isgraph
-
test for a visible character
- isgreater
-
test if x greater than y
- isgreaterequal
-
test if x is greater than or equal to y
- isinf
-
test for infinity
- isless
-
test if x is less than y
- islessequal
-
test if x is less than or equal to y
- islessgreater
-
test if x is less than or greater than y
- islower
-
test for a lowercase letter
- isnan
-
test for a NaN
- isnormal
-
test for a normal value
- isprint
-
test for a printable character
- ispunct
-
test for a punctuation character
- isspace
-
test for a white-space character
- isunordered
-
test if arguments are unordered
- isupper
-
test for an uppercase letter
- iswalnum
-
test for an alphanumeric wide-character code
- iswalpha
-
test for an alphabetic wide-character code
- iswblank
-
test for a blank wide-character code
- iswcntrl
-
test for a control wide-character code
- iswctype
-
test character for a specified class
- iswdigit
-
test for a decimal digit wide-character code
- iswgraph
-
test for a visible wide-character code
- iswlower
-
test for a lowercase letter wide-character code
- iswprint
-
test for a printable wide-character code
- iswpunct
-
test for a punctuation wide-character code
- iswspace
-
test for a white-space wide-character code
- iswupper
-
test for an uppercase letter wide-character code
- iswxdigit
-
test for a hexadecimal digit wide-character code
- isxdigit
-
test for a hexadecimal digit
- j0
-
Bessel functions of the first kind
- j1
-
See j0.3posix